AU215092B2
(en )
1956-11-08
Improvements in magnetic sound recording apparatus
CA488539A
(fr )
1952-12-02
Mecanisme pour jouer des disques
CA486556A
(fr )
1952-09-16
Dispositif reproducteur de sons
AU157422B2
(en )
1952-10-30
Improvements in or relating to electrical sound reproducing or recording heads orthe like
AU155930B2
(en )
1952-11-06
t Improvements in phonographs
AU1222652A
(en )
1952-10-30
Improvements in or relating to electrical sound reproducing or recording heads orthe like
CA485419A
(fr )
1952-08-05
Pick-up de phonographe
AU1247152A
(en )
1952-11-06
t Improvements in phonographs
AU149254B2
(en )
1950-11-02
Improvements in or relating to magnetic sound recording or reproducing apparatus
AU154700B2
(en )
1951-05-10
Improvements relating to magnetic sound recording or reproducing apparatus
AU154895B2
(en )
1953-04-16
Improved coin actuated machine for reproducing sound
AU164044B2
(en )
1952-03-13
Apparatus for magnetic sound-recording and sound reproduction
CA488629A
(fr )
1952-12-02
Systeme de reproduction de sons
CA514554A
(fr )
1955-07-12
Appareil d'enregistrement et de reproduction de sons
CA485182A
(fr )
1952-07-22
Mecanisme a changer les disques
AU3658150A
(en )
1950-11-02
Improvements in or relating to magnetic sound recording or reproducing apparatus
AU127551A
(en )
1951-05-10
Improvements relating to magnetic sound recording or reproducing apparatus
CA471728A
(fr )
1951-02-27
Commandes de tourne-disques de phonographes
AU159124B2
(en )
1952-03-20
Improvements in or relating to magnetic sound recording methods and recording heads therefor
AU153947B2
(en )
1952-04-24
Improvements in and relating to sound reproducing apparatus
CA492251A
(fr )
1953-04-21
Appareil pour jouer des disques de gramophone
CA481677A
(fr )
1952-03-11
Appareil de reproduction et d'enregistrement de son sur fil magnetique
AU930352A
(en )
1953-04-16
Improved coin actuated machine for reproducing sound
CA486687A
(fr )
1952-09-23
Systeme d'enregistrement et de reproduction magnetiques
AU728952A
(en )
1952-03-13
Apparatus for magnetic sound-recording and sound reproduction